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TiddlyWiki5/editions/tw2/source/tiddlywiki/js/Http.js

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JavaScript
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//--
//-- HTTP request code
//--
//# Perform an http request using the jQuery ajax function
function ajaxReq(args)
{
if(window.Components && window.netscape && window.netscape.security && document.location.protocol.indexOf("http") == -1)
window.netscape.security.PrivilegeManager.enablePrivilege("UniversalBrowserRead");
return jQuery.ajax(args);
}
//# Perform an http request
//# type - GET/POST/PUT/DELETE
//# url - the source url
//# data - optional data for POST and PUT
//# contentType - optionalContent type for the data (defaults to application/x-www-form-urlencoded)
//# username - optional username for basic authentication
//# password - optional password for basic authentication
//# callback - function to call when there is a response
//# params - parameter object that gets passed to the callback for storing it's state
//# headers - optional hashmap of additional headers
//# allowCache - unless true, adds a "nocache=" parameter to the URL
//# Return value is the underlying XMLHttpRequest object, or a string if there was an error
//# Callback function is called like this:
//# callback(status,params,responseText,url,xhr)
//# status - true if OK, false if error
//# params - the parameter object provided to loadRemoteFile()
//# responseText - the text of the file
//# url - requested URL
//# xhr - the underlying XMLHttpRequest object
function httpReq(type,url,callback,params,headers,data,contentType,username,password,allowCache)
{
var httpSuccess = function(xhr) {
try {
// IE error sometimes returns 1223 when it should be 204 so treat it as success, see #1450
return (!xhr.status && location.protocol === "file:") ||
(xhr.status >= 200 && xhr.status < 300) ||
xhr.status === 304 || xhr.status === 1223;
} catch(e) {}
return false;
};
var options = {
type:type,
url:url,
processData:false,
data:data,
cache:!!allowCache,
beforeSend: function(xhr) {
var i;
for(i in headers)
xhr.setRequestHeader(i,headers[i]);
xhr.setRequestHeader("X-Requested-With", "TiddlyWiki " + formatVersion());
}
};
if(callback) {
options.complete = function(xhr,textStatus) {
if(httpSuccess(xhr))
callback(true,params,xhr.responseText,url,xhr);
else
callback(false,params,null,url,xhr);
};
}
if(contentType)
options.contentType = contentType;
if(username)
options.username = username;
if(password)
options.password = password;
if(window.Components && window.netscape && window.netscape.security && document.location.protocol.indexOf("http") == -1)
window.netscape.security.PrivilegeManager.enablePrivilege("UniversalBrowserRead");
return jQuery.ajax(options);
}